The invention relates to a fabric production method, in particular to a method for producing a stretch knit warm fabric which is small in fiber damage, stable in elasticity, small in shrinkage degree and high in shape preservation property. The method comprises the steps of gray fabric knitting, gray fabric scutching, presetting, dyeing, water pressing and drying, fleecing, setting, lustring and shearing. During gray fabric knitting, ecotype fiber and single-component or multi-component blended yarn containing protein fiber or cellulosic fiber are used as surface yarn, DTY fine-denier polyester interlaced low-stretch long filament subjected to yarn steaming setting at 130 DEG C in a vacuum environment is used as bottom yarn, DTY polyester interlaced low-stretch yarn is used as middle connecting yarn, and 2.5 times drafting 20D spandex yarn is fed together with the surface yarn. In this way, the fabric is high in elasticity and shape preservation property. By reducing presetting temperature and machine speed, the degree of damage to spandex yarn is reduced to the minimum, and it is ensured that the elasticity of spandex yarn is stable.